﻿/**
 * @1900-2100区间内的公历、农历互转
 * @charset UTF-8
 * @Author  Jea杨(JJonline@JJonline.Cn)
 * @Time    2014-7-21
 * @Time    2016-8-13 Fixed 2033hex、Attribution Annals
 * @Time    2016-9-25 Fixed lunar LeapMonth Param Bug
 * @Time    2017-7-24 Fixed use getTerm Func Param Error.use solar year,NOT lunar year
 * @Version 1.0.3
 * @公历转农历：calendar.solar2lunar(1987,11,01); //[you can ignore params of prefix 0]
 * @农历转公历：calendar.lunar2solar(1987,09,10); //[you can ignore params of prefix 0]
 */
const calendar = {
  /**
   * 农历1900-2100的润大小信息表
   * @Array Of Property
   * @return Hex
   */
  lunarInfo: [
    0x04bd8,
    0x04ae0,
    0x0a570,
    0x054d5,
    0x0d260,
    0x0d950,
    0x16554,
    0x056a0,
    0x09ad0,
    0x055d2, // 1900-1909
    0x04ae0,
    0x0a5b6,
    0x0a4d0,
    0x0d250,
    0x1d255,
    0x0b540,
    0x0d6a0,
    0x0ada2,
    0x095b0,
    0x14977, // 1910-1919
    0x04970,
    0x0a4b0,
    0x0b4b5,
    0x06a50,
    0x06d40,
    0x1ab54,
    0x02b60,
    0x09570,
    0x052f2,
    0x04970, // 1920-1929
    0x06566,
    0x0d4a0,
    0x0ea50,
    0x16a95,
    0x05ad0,
    0x02b60,
    0x186e3,
    0x092e0,
    0x1c8d7,
    0x0c950, // 1930-1939
    0x0d4a0,
    0x1d8a6,
    0x0b550,
    0x056a0,
    0x1a5b4,
    0x025d0,
    0x092d0,
    0x0d2b2,
    0x0a950,
    0x0b557, // 1940-1949
    0x06ca0,
    0x0b550,
    0x15355,
    0x04da0,
    0x0a5b0,
    0x14573,
    0x052b0,
    0x0a9a8,
    0x0e950,
    0x06aa0, // 1950-1959
    0x0aea6,
    0x0ab50,
    0x04b60,
    0x0aae4,
    0x0a570,
    0x05260,
    0x0f263,
    0x0d950,
    0x05b57,
    0x056a0, // 1960-1969
    0x096d0,
    0x04dd5,
    0x04ad0,
    0x0a4d0,
    0x0d4d4,
    0x0d250,
    0x0d558,
    0x0b540,
    0x0b6a0,
    0x195a6, // 1970-1979
    0x095b0,
    0x049b0,
    0x0a974,
    0x0a4b0,
    0x0b27a,
    0x06a50,
    0x06d40,
    0x0af46,
    0x0ab60,
    0x09570, // 1980-1989
    0x04af5,
    0x04970,
    0x064b0,
    0x074a3,
    0x0ea50,
    0x06b58,
    0x05ac0,
    0x0ab60,
    0x096d5,
    0x092e0, // 1990-1999
    0x0c960,
    0x0d954,
    0x0d4a0,
    0x0da50,
    0x07552,
    0x056a0,
    0x0abb7,
    0x025d0,
    0x092d0,
    0x0cab5, // 2000-2009
    0x0a950,
    0x0b4a0,
    0x0baa4,
    0x0ad50,
    0x055d9,
    0x04ba0,
    0x0a5b0,
    0x15176,
    0x052b0,
    0x0a930, // 2010-2019
    0x07954,
    0x06aa0,
    0x0ad50,
    0x05b52,
    0x04b60,
    0x0a6e6,
    0x0a4e0,
    0x0d260,
    0x0ea65,
    0x0d530, // 2020-2029
    0x05aa0,
    0x076a3,
    0x096d0,
    0x04afb,
    0x04ad0,
    0x0a4d0,
    0x1d0b6,
    0x0d250,
    0x0d520,
    0x0dd45, // 2030-2039
    0x0b5a0,
    0x056d0,
    0x055b2,
    0x049b0,
    0x0a577,
    0x0a4b0,
    0x0aa50,
    0x1b255,
    0x06d20,
    0x0ada0, // 2040-2049
    /** Add By JJonline@JJonline.Cn**/
    0x14b63,
    0x09370,
    0x049f8,
    0x04970,
    0x064b0,
    0x168a6,
    0x0ea50,
    0x06b20,
    0x1a6c4,
    0x0aae0, // 2050-2059
    0x092e0,
    0x0d2e3,
    0x0c960,
    0x0d557,
    0x0d4a0,
    0x0da50,
    0x05d55,
    0x056a0,
    0x0a6d0,
    0x055d4, // 2060-2069
    0x052d0,
    0x0a9b8,
    0x0a950,
    0x0b4a0,
    0x0b6a6,
    0x0ad50,
    0x055a0,
    0x0aba4,
    0x0a5b0,
    0x052b0, // 2070-2079
    0x0b273,
    0x06930,
    0x07337,
    0x06aa0,
    0x0ad50,
    0x14b55,
    0x04b60,
    0x0a570,
    0x054e4,
    0x0d160, // 2080-2089
    0x0e968,
    0x0d520,
    0x0daa0,
    0x16aa6,
    0x056d0,
    0x04ae0,
    0x0a9d4,
    0x0a2d0,
    0x0d150,
    0x0f252, // 2090-2099
    0x0d520
  ], // 2100

  /**
   * 公历每个月份的天数普通表
   * @Array Of Property
   * @return Number
   */
  solarMonth: [31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31],

  /**
   * 天干地支之天干速查表
   * @Array Of Property trans["甲","乙","丙","丁","戊","己","庚","辛","壬","癸"]
   * @return Cn string
   */
  Gan: ['\u7532', '\u4e59', '\u4e19', '\u4e01', '\u620a', '\u5df1', '\u5e9a', '\u8f9b', '\u58ec', '\u7678'],

  /**
   * 天干地支之地支速查表
   * @Array Of Property
   * @trans["子","丑","寅","卯","辰","巳","午","未","申","酉","戌","亥"]
   * @return Cn string
   */
  Zhi: ['\u5b50', '\u4e11', '\u5bc5', '\u536f', '\u8fb0', '\u5df3', '\u5348', '\u672a', '\u7533', '\u9149', '\u620c', '\u4ea5'],

  /**
   * 天干地支之地支速查表<=>生肖
   * @Array Of Property
   * @trans["鼠","牛","虎","兔","龙","蛇","马","羊","猴","鸡","狗","猪"]
   * @return Cn string
   */
  Animals: ['\u9f20', '\u725b', '\u864e', '\u5154', '\u9f99', '\u86c7', '\u9a6c', '\u7f8a', '\u7334', '\u9e21', '\u72d7', '\u732a'],

  /**
   * 阳历节日
   */
  festival: {
    '1-1': { title: '元旦节' },
    '2-14': { title: '情人节' },
    '5-1': { title: '劳动节' },
    '5-4': { title: '青年节' },
    '6-1': { title: '儿童节' },
    '9-10': { title: '教师节' },
    '10-1': { title: '国庆节' },
    '12-25': { title: '圣诞节' },

    '3-8': { title: '妇女节' },
    '3-12': { title: '植树节' },
    '4-1': { title: '愚人节' },
    '5-12': { title: '护士节' },
    '7-1': { title: '建党节' },
    '8-1': { title: '建军节' },
    '12-24': { title: '平安夜' }
  },

  /**
   * 农历节日
   */
  lFestival: {
    '12-30': { title: '除夕' },
    '1-1': { title: '春节' },
    '1-15': { title: '元宵节' },
    '2-2': { title: '龙抬头' },
    '5-5': { title: '端午节' },
    '7-7': { title: '七夕节' },
    '7-15': { title: '中元节' },
    '8-15': { title: '中秋节' },
    '9-9': { title: '重阳节' },
    '10-1': { title: '寒衣节' },
    '10-15': { title: '下元节' },
    '12-8': { title: '腊八节' },
    '12-23': { title: '北方小年' },
    '12-24': { title: '南方小年' }
  },

  /**
   * 返回默认定义的阳历节日
   */
  getFestival() {
    return this.festival
  },

  /**
   * 返回默认定义的内容里节日
   */
  getLunarFestival() {
    return this.lFestival
  },

  /**
   *
   * @param param {Object} 按照festival的格式输入数据，设置阳历节日
   */
  setFestival(param = {}) {
    this.festival = param
  },

  /**
   *
   * @param param {Object} 按照lFestival的格式输入数据，设置农历节日
   */
  setLunarFestival(param = {}) {
    this.lFestival = param
  },

  /**
   * 24节气速查表
   * @Array Of Property
   * @trans["小寒","大寒","立春","雨水","惊蛰","春分","清明","谷雨","立夏","小满","芒种","夏至","小暑","大暑","立秋","处暑","白露","秋分","寒露","霜降","立冬","小雪","大雪","冬至"]
   * @return Cn string
   */
  solarTerm: [
    '\u5c0f\u5bd2',
    '\u5927\u5bd2',
    '\u7acb\u6625',
    '\u96e8\u6c34',
    '\u60ca\u86f0',
    '\u6625\u5206',
    '\u6e05\u660e',
    '\u8c37\u96e8',
    '\u7acb\u590f',
    '\u5c0f\u6ee1',
    '\u8292\u79cd',
    '\u590f\u81f3',
    '\u5c0f\u6691',
    '\u5927\u6691',
    '\u7acb\u79cb',
    '\u5904\u6691',
    '\u767d\u9732',
    '\u79cb\u5206',
    '\u5bd2\u9732',
    '\u971c\u964d',
    '\u7acb\u51ac',
    '\u5c0f\u96ea',
    '\u5927\u96ea',
    '\u51ac\u81f3'
  ],

  /**
   * 1900-2100各年的24节气日期速查表
   * @Array Of Property
   * @return 0x string For splice
   */
  sTermInfo: [
    '9778397bd097c36b0b6fc9274c91aa',
    '97b6b97bd19801ec9210c965cc920e',
    '97bcf97c3598082c95f8c965cc920f',
    '97bd0b06bdb0722c965ce1cfcc920f',
    'b027097bd097c36b0b6fc9274c91aa',
    '97b6b97bd19801ec9210c965cc920e',
    '97bcf97c359801ec95f8c965cc920f',
    '97bd0b06bdb0722c965ce1cfcc920f',
    'b027097bd097c36b0b6fc9274c91aa',
    '97b6b97bd19801ec9210c965cc920e',
    '97bcf97c359801ec95f8c965cc920f',
    '97bd0b06bdb0722c965ce1cfcc920f',
    'b027097bd097c36b0b6fc9274c91aa',
    '9778397bd19801ec9210c965cc920e',
    '97b6b97bd19801ec95f8c965cc920f',
    '97bd09801d98082c95f8e1cfcc920f',
    '97bd097bd097c36b0b6fc9210c8dc2',
    '9778397bd197c36c9210c9274c91aa',
    '97b6b97bd19801ec95f8c965cc920e',
    '97bd09801d98082c95f8e1cfcc920f',
    '97bd097bd097c36b0b6fc9210c8dc2',
    '9778397bd097c36c9210c9274c91aa',
    '97b6b97bd19801ec95f8c965cc920e',
    '97bcf97c3598082c95f8e1cfcc920f',
    '97bd097bd097c36b0b6fc9210c8dc2',
    '9778397bd097c36c9210c9274c91aa',
    '97b6b97bd19801ec9210c965cc920e',
    '97bcf97c3598082c95f8c965cc920f',
    '97bd097bd097c35b0b6fc920fb0722',
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    '9778397bd097c36b0b6fc9274c91aa',
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    '97bcf97c359801ec95f8c965cc920f',
    '97bd097bd07f595b0b6fc920fb0722',
    '9778397bd097c36b0b6fc9210c8dc2',
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    '97b6b97bd19801ec95f8c965cc920f',
    '97bd07f5307f595b0b0bc920fb0722',
    '7f0e397bd097c36b0b6fc9210c8dc2',
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    '7f07e7f0e37f149b0723b0787b0721',
    '7f0e27f0e47f531b0723b0b6fb0722',
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    '7ec967f0e37f14998082b0787b06bd',
    '7f07e7f0e47f531b0723b0b6fb0721',
    '7f0e37f1487f531b0b0bb0b6fb0722',
    '7f0e37f0e37f14898082b072297c35',
    '7ec967f0e37f14998082b0787b06bd',
    '7f07e7f0e47f531b0723b0b6fb0721',
    '7f0e27f1487f531b0b0bb0b6fb0722',
    '7f0e37f0e37f14898082b072297c35',
    '7ec967f0e37f14998082b0787b06bd',
    '7f07e7f0e47f531b0723b0b6fb0721',
    '7f0e27f1487f531b0b0bb0b6fb0722',
    '7f0e37f0e366aa89801eb072297c35',
    '7ec967f0e37f14998082b0787b06bd',
    '7f07e7f0e47f149b0723b0787b0721',
    '7f0e27f1487f531b0b0bb0b6fb0722',
    '7f0e37f0e366aa89801eb072297c35',
    '7ec967f0e37f14998082b0723b06bd',
    '7f07e7f0e47f149b0723b0787b0721',
    '7f0e27f0e47f531b0723b0b6fb0722',
    '7f0e37f0e366aa89801eb072297c35',
    '7ec967f0e37f14998082b0723b06bd',
    '7f07e7f0e37f14998083b0787b0721',
    '7f0e27f0e47f531b0723b0b6fb0722',
    '7f0e37f0e366aa89801eb072297c35',
    '7ec967f0e37f14898082b0723b02d5',
    '7f07e7f0e37f14998082b0787b0721',
    '7f07e7f0e47f531b0723b0b6fb0722',
    '7f0e36665b66aa89801e9808297c35',
    '665f67f0e37f14898082b0723b02d5',
    '7ec967f0e37f14998082b0787b0721',
    '7f07e7f0e47f531b0723b0b6fb0722',
    '7f0e36665b66a449801e9808297c35',
    '665f67f0e37f14898082b0723b02d5',
    '7ec967f0e37f14998082b0787b06bd',
    '7f07e7f0e47f531b0723b0b6fb0721',
    '7f0e36665b66a449801e9808297c35',
    '665f67f0e37f14898082b072297c35',
    '7ec967f0e37f14998082b0787b06bd',
    '7f07e7f0e47f531b0723b0b6fb0721',
    '7f0e26665b66a449801e9808297c35',
    '665f67f0e37f1489801eb072297c35',
    '7ec967f0e37f14998082b0787b06bd',
    '7f07e7f0e47f531b0723b0b6fb0721',
    '7f0e27f1487f531b0b0bb0b6fb0722'
  ],

  /**
   * 数字转中文速查表
   * @Array Of Property
   * @trans ['日','一','二','三','四','五','六','七','八','九','十']
   * @return Cn string
   */
  nStr1: ['\u65e5', '\u4e00', '\u4e8c', '\u4e09', '\u56db', '\u4e94', '\u516d', '\u4e03', '\u516b', '\u4e5d', '\u5341'],

  /**
   * 日期转农历称呼速查表
   * @Array Of Property
   * @trans ['初','十','廿','卅']
   * @return Cn string
   */
  nStr2: ['\u521d', '\u5341', '\u5eff', '\u5345'],

  /**
   * 月份转农历称呼速查表
   * @Array Of Property
   * @trans ['正','一','二','三','四','五','六','七','八','九','十','冬','腊']
   * @return Cn string
   */
  nStr3: ['\u6b63', '\u4e8c', '\u4e09', '\u56db', '\u4e94', '\u516d', '\u4e03', '\u516b', '\u4e5d', '\u5341', '\u51ac', '\u814a'],

  /**
   * 返回农历y年一整年的总天数
   * @param y lunar Year
   * @return Number
   * @eg:var count = calendar.lYearDays(1987) ;//count=387
   */
  lYearDays: function (y) {
    let i
    let sum = 348
    for (i = 0x8000; i > 0x8; i >>= 1) {
      sum += this.lunarInfo[y - 1900] & i ? 1 : 0
    }
    return sum + this.leapDays(y)
  },

  /**
   * 返回农历y年闰月是哪个月；若y年没有闰月 则返回0
   * @param y lunar Year
   * @return Number (0-12)
   * @eg:var leapMonth = calendar.leapMonth(1987) ;//leapMonth=6
   */
  leapMonth: function (y) {
    // 闰字编码 \u95f0
    return this.lunarInfo[y - 1900] & 0xf
  },

  /**
   * 返回农历y年闰月的天数 若该年没有闰月则返回0
   * @param y lunar Year
   * @return Number (0、29、30)
   * @eg:var leapMonthDay = calendar.leapDays(1987) ;//leapMonthDay=29
   */
  leapDays: function (y) {
    if (this.leapMonth(y)) {
      return this.lunarInfo[y - 1900] & 0x10000 ? 30 : 29
    }
    return 0
  },

  /**
   * 返回农历y年m月（非闰月）的总天数，计算m为闰月时的天数请使用leapDays方法
   * @param y lunar Year
   * @param m lunar Month
   * @return Number (-1、29、30)
   * @eg:var MonthDay = calendar.monthDays(1987,9) ;//MonthDay=29
   */
  monthDays: function (y, m) {
    if (m > 12 || m < 1) {
      return -1
    } // 月份参数从1至12，参数错误返回-1
    return this.lunarInfo[y - 1900] & (0x10000 >> m) ? 30 : 29
  },

  /**
   * 返回公历(!)y年m月的天数
   * @param y solar Year
   * @param m solar Month
   * @return Number (-1、28、29、30、31)
   * @eg:var solarMonthDay = calendar.leapDays(1987) ;//solarMonthDay=30
   */
  solarDays: function (y, m) {
    if (m > 12 || m < 1) {
      return -1
    } // 若参数错误 返回-1
    const ms = m - 1
    if (ms === 1) {
      // 2月份的闰平规律测算后确认返回28或29
      return (y % 4 === 0 && y % 100 !== 0) || y % 400 === 0 ? 29 : 28
    } else {
      return this.solarMonth[ms]
    }
  },

  /**
   * 农历年份转换为干支纪年
   * @param  lYear 农历年的年份数
   * @return Cn string
   */
  toGanZhiYear: function (lYear) {
    let ganKey = (lYear - 3) % 10
    let zhiKey = (lYear - 3) % 12
    if (ganKey === 0) ganKey = 10 // 如果余数为0则为最后一个天干
    if (zhiKey === 0) zhiKey = 12 // 如果余数为0则为最后一个地支
    return this.Gan[ganKey - 1] + this.Zhi[zhiKey - 1]
  },

  /**
   * 公历月、日判断所属星座
   * @param  cMonth [description]
   * @param  cDay [description]
   * 中文星座顺序：魔羯水瓶双鱼白羊金牛双子巨蟹狮子处女天秤天蝎射手魔羯
   * 英文星座顺序：Capricom Aquarius Pisces Aries Taurus Gemini Cacer Leo Virgo Libra Scorpio Sagittarius Capricom
   * @return Cn string
   */
  toAstro: function (cMonth, cDay) {
    const s = '\u9b54\u7faf\u6c34\u74f6\u53cc\u9c7c\u767d\u7f8a\u91d1\u725b\u53cc\u5b50\u5de8\u87f9\u72ee\u5b50\u5904\u5973\u5929\u79e4\u5929\u874e\u5c04\u624b\u9b54\u7faf'
    const arr = [20, 19, 21, 21, 21, 22, 23, 23, 23, 23, 22, 22]
    return s.substr(cMonth * 2 - (cDay < arr[cMonth - 1] ? 2 : 0), 2) + '\u5ea7' // 座
  },

  /**
   * 公历月、日判断所属星座
   * @param  cAstro [description]
   * 中文星座顺序：魔羯水瓶双鱼白羊金牛双子巨蟹狮子处女天秤天蝎射手
   * 英文星座顺序：Capricom Aquarius Pisces Aries Taurus Gemini Cacer Leo Virgo Libra Scorpio Sagittarius Capricom
   * @return En string
   */
  toEnAstro: function (cAstro) {
    let s
    switch (cAstro) {
      case '\u9b54\u7faf\u5ea7': // 摩羯
        s = 'Capricorn'
        break
      case '\u6c34\u74f6\u5ea7': // 水瓶
        s = 'Aquarius'
        break
      case '\u53cc\u9c7c\u5ea7': // 双鱼
        s = 'Pisces'
        break
      case '\u767d\u7f8a\u5ea7': // 白羊
        s = 'Aries'
        break
      case '\u91d1\u725b\u5ea7': // 金牛
        s = 'Taurus'
        break
      case '\u53cc\u5b50\u5ea7': // 双子
        s = 'Gemini'
        break
      case '\u5de8\u87f9\u5ea7': // 巨蟹
        s = 'Cancer'
        break
      case '\u72ee\u5b50\u5ea7': // 狮子
        s = 'Leo'
        break
      case '\u5904\u5973\u5ea7': // 处女
        s = 'Virgo'
        break
      case '\u5929\u79e4\u5ea7': // 天秤
        s = 'Libra'
        break
      case '\u5929\u874e\u5ea7': // 天蝎
        s = 'Scorpio'
        break
      default: // 射手
        s = 'Sagittarius'
    }
    return s
  },
  /**
   * 传入offset偏移量返回干支
   * @param offset 相对甲子的偏移量
   * @return Cn string
   */
  toGanZhi: function (offset) {
    return this.Gan[offset % 10] + this.Zhi[offset % 12]
  },

  /**
   * 传入公历(!)y年获得该年第n个节气的公历日期
   * @param y y公历年(1900-2100)
   * @param n n二十四节气中的第几个节气(1~24)；从n=1(小寒)算起
   * @return day Number
   * @eg:var _24 = calendar.getTerm(1987,3) ;//_24=4;意即1987年2月4日立春
   */
  getTerm: function (y, n) {
    if (y < 1900 || y > 2100 || n < 1 || n > 24) {
      return -1
    }
    const _table = this.sTermInfo[y - 1900]
    const _calcDay = []
    for (let index = 0; index < _table.length; index += 5) {
      const chunk = parseInt('0x' + _table.substr(index, 5)).toString()
      _calcDay.push(chunk[0], chunk.substr(1, 2), chunk[3], chunk.substr(4, 2))
    }
    return parseInt(_calcDay[n - 1])
  },

  /**
   * 传入农历数字月份返回汉语通俗表示法
   * @param m lunar month
   * @return Cn string
   * @eg:var cnMonth = calendar.toChinaMonth(12) ;//cnMonth='腊月'
   */
  toChinaMonth: function (m) {
    // 月 => \u6708
    if (m > 12 || m < 1) {
      return -1
    } // 若参数错误 返回-1
    let s = this.nStr3[m - 1]
    s += '\u6708' // 加上月字
    return s
  },

  /**
   * 传入农历日期数字返回汉字表示法
   * @param d lunar day
   * @return Cn string
   * @eg:var cnDay = calendar.toChinaDay(21) ;//cnMonth='廿一'
   */
  toChinaDay: function (d) {
    // 日 => \u65e5
    let s
    switch (d) {
      case 10:
        s = '\u521d\u5341'
        break
      case 20:
        s = '\u4e8c\u5341'
        break
      case 30:
        s = '\u4e09\u5341'
        break
      default:
        s = this.nStr2[Math.floor(d / 10)]
        s += this.nStr1[d % 10]
    }
    return s
  },

  /**
   * 年份转生肖[!仅能大致转换] => 精确划分生肖分界线是“立春”
   * @param y year
   * @return Cn string
   * @eg:var animal = calendar.getAnimal(1987) ;//animal='兔'
   */
  getAnimal: function (y) {
    return this.Animals[(y - 4) % 12]
  },

  /**
   * 传入阳历年月日获得详细的公历、农历object信息 <=>JSON
   * !important! 公历参数区间1900.1.31~2100.12.31
   * @param yPara  solar year
   * @param mPara  solar month
   * @param dPara  solar day
   * @return JSON object
   * @eg:console.log(calendar.solar2lunar(1987,11,01));
   */
  solar2lunar: function (yPara, mPara, dPara) {
    let y = parseInt(yPara)
    let m = parseInt(mPara)
    let d = parseInt(dPara)
    // 年份限定、上限
    if (y < 1900 || y > 2100) {
      return -1 // undefined转换为数字变为NaN
    }
    // 公历传参最下限
    if (y === 1900 && m === 1 && d < 31) {
      return -1
    }

    // 未传参  获得当天
    let objDate
    if (!y) {
      objDate = new Date()
    } else {
      objDate = new Date(y, m - 1, d)
    }
    let i
    let leap = 0
    let temp = 0
    // 修正ymd参数
    y = objDate.getFullYear()
    m = objDate.getMonth() + 1
    d = objDate.getDate()
    let offset = (Date.UTC(objDate.getFullYear(), objDate.getMonth(), objDate.getDate()) - Date.UTC(1900, 0, 31)) / 86400000
    for (i = 1900; i < 2101 && offset > 0; i++) {
      temp = this.lYearDays(i)
      offset -= temp
    }
    if (offset < 0) {
      offset += temp
      i--
    }

    // 是否今天
    const isTodayObj = new Date()
    let isToday = false
    if (isTodayObj.getFullYear() === y && isTodayObj.getMonth() + 1 === m && isTodayObj.getDate() === d) {
      isToday = true
    }
    // 星期几
    let nWeek = objDate.getDay()
    const cWeek = this.nStr1[nWeek]
    // 数字表示周几顺应天朝周一开始的惯例
    if (nWeek === 0) {
      nWeek = 7
    }
    // 农历年
    const year = i
    leap = this.leapMonth(i) // 闰哪个月
    let isLeap = false

    // 效验闰月
    for (i = 1; i < 13 && offset > 0; i++) {
      // 闰月
      if (leap > 0 && i === leap + 1 && isLeap === false) {
        --i
        isLeap = true
        temp = this.leapDays(year) // 计算农历闰月天数
      } else {
        temp = this.monthDays(year, i) // 计算农历普通月天数
      }
      // 解除闰月
      if (isLeap === true && i === leap + 1) {
        isLeap = false
      }
      offset -= temp
    }
    // 闰月导致数组下标重叠取反
    if (offset === 0 && leap > 0 && i === leap + 1) {
      if (isLeap) {
        isLeap = false
      } else {
        isLeap = true
        --i
      }
    }
    if (offset < 0) {
      offset += temp
      --i
    }
    // 农历月
    const month = i
    // 农历日
    const day = offset + 1
    // 天干地支处理
    const sm = m - 1
    const gzY = this.toGanZhiYear(year)

    // 当月的两个节气
    // bugfix-2017-7-24 11:03:38 use lunar Year Param `y` Not `year`
    const firstNode = this.getTerm(y, m * 2 - 1) // 返回当月「节」为几日开始
    const secondNode = this.getTerm(y, m * 2) // 返回当月「节」为几日开始

    // 依据12节气修正干支月
    let gzM = this.toGanZhi((y - 1900) * 12 + m + 11)
    if (d >= firstNode) {
      gzM = this.toGanZhi((y - 1900) * 12 + m + 12)
    }

    // 传入的日期的节气与否
    let isTerm = false
    let Term = null
    if (firstNode === d) {
      isTerm = true
      Term = this.solarTerm[m * 2 - 2]
    }
    if (secondNode === d) {
      isTerm = true
      Term = this.solarTerm[m * 2 - 1]
    }
    // 日柱 当月一日与 1900/1/1 相差天数
    const dayCyclical = Date.UTC(y, sm, 1, 0, 0, 0, 0) / 86400000 + 25567 + 10
    const gzD = this.toGanZhi(dayCyclical + d - 1)
    // 该日期所属的星座
    const cAstro = this.toAstro(m, d)
    const astro = this.toEnAstro(cAstro)

    const solarDate = y + '-' + m + '-' + d
    const lunarDate = year + '-' + month + '-' + day

    const festival = this.festival
    const lFestival = this.lFestival

    const festivalDate = m + '-' + d
    let lunarFestivalDate = month + '-' + day

    // bugfix https://github.com/jjonline/calendar.js/issues/29
    // 农历节日修正：农历12月小月则29号除夕，大月则30号除夕
    // 此处取巧修正：当前为农历12月29号时增加一次判断并且把lunarFestivalDate设置为12-30以正确取得除夕
    // 天朝农历节日遇闰月过前不过后的原则，此处取农历12月天数不考虑闰月
    // 农历润12月在本工具支持的200年区间内仅1574年出现
    if (month === 12 && day === 29 && this.monthDays(year, month) === 29) {
      lunarFestivalDate = '12-30'
    }
    return {
      date: solarDate,
      lunarDate: lunarDate,
      festival: festival[festivalDate] ? festival[festivalDate].title : null,
      lunarFestival: lFestival[lunarFestivalDate] ? lFestival[lunarFestivalDate].title : null,
      'lYear': year,
      'lMonth': month,
      'lDay': day,
      'Animal': this.getAnimal(year),
      'IMonthCn': (isLeap ? '\u95f0' : '') + this.toChinaMonth(month),
      'IDayCn': this.toChinaDay(day),
      'cYear': y,
      'cMonth': m,
      'cDay': d,
      'gzYear': gzY,
      'gzMonth': gzM,
      'gzDay': gzD,
      'isToday': isToday,
      'isLeap': isLeap,
      'nWeek': nWeek,
      'ncWeek': '\u661f\u671f' + cWeek,
      'isTerm': isTerm,
      'Term': Term,
      'astro': astro,
      'cAstro': cAstro
    }
  },

  /**
   * 传入农历年月日以及传入的月份是否闰月获得详细的公历、农历object信息 <=>JSON
   * !important! 参数区间1900.1.31~2100.12.1
   * @param y  lunar year
   * @param m  lunar month
   * @param d  lunar day
   * @param isLeapMonth  lunar month is leap or not.[如果是农历闰月第四个参数赋值true即可]
   * @return JSON object
   * @eg:console.log(calendar.lunar2solar(1987,9,10));
   */
  lunar2solar: function (y, m, d, isLeapMonth) {
    y = parseInt(y)
    m = parseInt(m)
    d = parseInt(d)
    isLeapMonth = !!isLeapMonth
    const leapMonth = this.leapMonth(y)
    if (isLeapMonth && leapMonth !== m) {
      return -1
    } // 传参要求计算该闰月公历 但该年得出的闰月与传参的月份并不同
    if ((y === 2100 && m === 12 && d > 1) || (y === 1900 && m === 1 && d < 31)) {
      return -1
    } // 超出了最大极限值
    const day = this.monthDays(y, m)
    let _day = day
    // bugFix 2016-9-25
    // if month is leap, _day use leapDays method
    if (isLeapMonth) {
      _day = this.leapDays(y, m)
    }
    if (y < 1900 || y > 2100 || d > _day) {
      return -1
    } // 参数合法性效验

    // 计算农历的时间差
    let offset = 0
    let i
    for (i = 1900; i < y; i++) {
      offset += this.lYearDays(i)
    }
    let leap = 0
    let isAdd = false
    for (i = 1; i < m; i++) {
      leap = this.leapMonth(y)
      if (!isAdd) {
        // 处理闰月
        if (leap <= i && leap > 0) {
          offset += this.leapDays(y)
          isAdd = true
        }
      }
      offset += this.monthDays(y, i)
    }
    // 转换闰月农历 需补充该年闰月的前一个月的时差
    if (isLeapMonth) {
      offset += day
    }
    // 1900年农历正月一日的公历时间为1900年1月30日0时0分0秒(该时间也是本农历的最开始起始点)
    const strap = Date.UTC(1900, 1, 30, 0, 0, 0)
    const calObj = new Date((offset + d - 31) * 86400000 + strap)
    const cY = calObj.getUTCFullYear()
    const cM = calObj.getUTCMonth() + 1
    const cD = calObj.getUTCDate()

    return this.solar2lunar(cY, cM, cD)
  }
}

export default calendar
